US4172622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plain bearings
Assignee: Federal Mogul Engineering Ltd
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Filing: 1976-10-28
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Granted: 1979-10-30
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Expires: 1996-10-28
Abstract
Abstract This invention consists of a plain bearing in which the bearing surface consists of or includes poly-phenylene sulphide to give good bearing properties and also because such linings can be bonded to backings of steel or aluminium or aluminium alloys with a bond that withstands hard operating conditions, for example changes of temperature and changes of shape and stress. The linear polymer can be cross-linked to a desired extent by appropriate treatment.
Inventors
- 👤 Dennis S. Baker
- 👤 Glyndwr J. Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:35
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C9/00; F16C9/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A bearing which comprises a steel backing having bonded thereto a layer of aluminum or aluminum alloy, and adhered thereon a polyphenylene sulfide layer having admixed therein a quantity of polytetrafluoroethylene in an amount sufficient to provide a lining for said bearing with sufficient lubricating properties such that the bearing can function as a dry bearing.
Claim 2
Dependent Claim
56 words
A bearing which comprises a steel backing having bonded thereto a layer of aluminum or aluminum alloy, and adhered thereon a polyphenylene sulfide layer having admixed therein a quantity of polytetrafluoroethylene in an amount sufficient to provide a lining for said bearing with sufficient lubricating properties such that the bearing can function as a dry bearing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |